Lock



E. C. K1N NEAR June 9,1925.

LOCK

Filed lay '7, 1920 2 Sheets-Sheet 1 -.lune 9, 1925. 1,541,511

E, c. KINNEAR Locx rnqdmy 7, 1920 2 sheets-sheet 2 Patented .lune 9,1925.

PATENT OFFCE.v

EUGENE C. KINNEAR, OF SEATTLE, lVsSI-IINGTON, ASSIG'NOR rIO ANAKIN IOCKWORKS, OF CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

Lock.

Application led May 7,

To all whom t may concern.' l

Be it known that I, EUGENE C. KINNEAR, a citizen of the United States,residing in Seattle, in the county of King and State of Washington, haveinvented a new. and useful Improvement in Locks, of which the fol lowingis a specification.

This invention relates in general to safety appliances for safes, vaultsand the like and has more particular reference to the prevision of asafety appliance for preventing opening of the safe or vault door afterythe combination or time locking mechanism has been broken or blown awayor otherwise forced from its normal position.

A principal object of the present invention is the provision of a deviceof this character for insuring against the withdrawal of the lockingbolts usually provided for the locking of the safe or vault door whenthe means normally holding said bolts against retraction becomes nolonger operative.

Another highly important object of the invention is the provision ofmeans which will remain operative after the time locking mechanism orcombination mechanism is disturbed for holding the safe or vault doorvsecurely locked at a number of points arranged in spaced relation alongthe door edge.

Another important object of the invention is the provision of a safetydevice of the character described which may be arranged on the innerside .of the door, and at vany desired height and in such manner thatits location cannot be detected from without the vault or safe. Myinvention contemplates in this connection the provision of a safetydevice which cannot be tampered with by persons not intimatelyacquainted with the position given said device in the particular safe inwhich it is installed.

A further object of the invention is the provision of a device of thecharacter described, which may be readily installedv without disturbingany of the parts usually provided on safe and vault doors, and Vwhichwill not involve the utilization of any locking bolts in addition tothose already on the safe door.

Numerous other objects and advantages of the present inventionswill bereadily apparent as the invention is better understood from "thefollowing description when con- 1920. Serial No. 379,454.

sidered in connection with the accompanying drawing illustrating apreferred embodiment. thereof.

Referring to the drawings- Figure 1 is a rear elevation of a safe doorequipped with my present invention;

Fig. 2 is a similar View on an enlarged scale of the time or combinationmechanism and the safety lock inwhich my invention is embodied, the rearcover plate of the ter having been removed;

Fig. 3 is a view similar to Fig. 2 with the parts dierently arranged;and

Fig. 4 is a section taken substantially on the line 4 4 of Fig. 2. Y

For the purpose of illustrating my present invention I have shown on thedrawings a safe door 11 of any usual or preferred construction andsuitably hinged in a casing or frame 12 by hinges 18. In the presentinstance this door is provided with-inwardly extending lianges 14 inwhich are slidably mounted locking bars or bolts 15 which may beprojected into a locking flange 16 on the door frame. The bolts 15 arefast to a com mon control bar 17 which is adapted to beV anism generallyindicated by the reference character 18 may, therefore, be referred toasa setting mechanism.A

It will be readily appreciated that if the mechanism 18 be broken orblown away by explosion or become otherwise dislodged, the controlmember 17 may be moved to unlock the safe or vault and this is the usualprocedure in surreptitious opening of such doors. My inventioncontemplates the provision of means for preventing this movement of thecontrol bar under such conditions and circumstances. This meanscomprises an auxiliary bolt or plunger 21 which is automatically movedinto position behind the control member upon dislodgment of thecombination or time locking mechanism. lThe plunger 21 has a shank whichis of angular section throughout a part 22 adjacent the plunger head andcircular in section therebeyond as indicated at 23. The Aplunger extendsthrough an opening 24 in theV front of an enclosing Wall 25 whichopening is of a shape corresponding to the sectional shape of part 22.The round portion 23 of the shank extends into a guiding sleeve orcylinder 26 located with'- in the side Wall 25. A spring;- 27 isprovided behind the shank and 'exerts pressure on the plunger, tendingto move it into locking position. The plungexl is held retracted by abell crank pivoted at 23 and having one arm 29 engaged in a slot 31 inthe shank and having the other arm con-- nc'cted `by a link 33 With anarm 3i of a second bell crank pi'voted at in a bracket 36 Which ismounted upon the safe door 11 in appropriate location. The other arm 37of this second bell crank extends down behind the combination or timelocking mec anismA and through vthe extremity of the arm 37 a scre'iv`33 is positioned, this set screw taking into a 'threaded Vape'iiure 39lin the timelockifn'g or combination mechanism.

The Wall '25 'is the 'peripheral Wall of a housing for the plunger landits cf'introlling mechanism and extends up frm a bases-1. A bracket 42isprovided to 'extend rear- Wardly from this base 41and in this bracketis fixed ythe forward :end of the sleeve 26. The side ivall 25 and base41 constitute f parts of Ea housing which "may be 'fastened in anappropriate position upon the Yinner side of the 'safe door vby machinesrrevrs extending` through 4the base il and into, but pre eraloly notthrough, the safe "-door.

honi-'d the Itime lookin-g "or Acombination mechanism becomedisloc'lgedit willb'e ifest jthat resulting movement of the Ytwo bell'cranks Zand the link will 'xvitl'idiaiv theaiin -29 fromf-latchingposition and permit the Vplunger -21 'to be iilov'ed out by the spring27 from the position 'shown in 2 tothe :position shown in l? 3, linwhich position it -is arranged vto prevent unlocking movement of fthecontrol bar. x

I yprovide a holloW bloss 51 ivi-thin the housing,ahd Wit-hin this bossalock or latch 52 is vpressed outwardly by Ia spring KR53 jthe shank of-the plunger.v llVhen theA 'plunger is retracted *this latch bears upon"the angular part of the shank 22 vand ivhenithe plunger extended dropsin lifehi-nd Lthe ,part 23 and prevents return movement 'of g4theplunger.

`Since 'by using 4`a link 33 of appropriate ylength the housing of4fthe"safety` device "may be located vany yparticular lpos'itionjand by'changingthe length zof the link `33 this ""on may be altered'or lbedifferent in diff' ,ent VAsafes =a`nd lon Vthis '-'account the`vPosition l'of the plunger v21 may not be tdetermined from Without thesafe so that blowing away of the safety device is rendered difficult ifnot impossible.

It is thought that the invention and many of its attendant advantagesWill Vbe apparent from the foregoing Without further description and itwill be manifest that various changes may be made in the form, construe`tion 'and 'arrangement of the parts without departing from the spiritand scope of the invention or sacrificing all of its materialadvantages, the form hereinbefore described being merely a prefer-redembodiment thereof.

I claim:

1. A lock for safe doors and the like,fcom prising in combination: aplurality of locking bars or bolts, a control member therefor andsimultaneously moving them into and out of operative position, anormally operable setting mechanism for said control member, means projectable into locking contact with said control member to preventmovement thereof when said setting mechanism is disarranged, and pivotedlocking means normally .preventing said proj'ectable means from beingmoved into Contact With said control member.

2. A lock for safe'doors and the like, comprising Ain combination: aplurality vof locking bars or bolts, a control fmember thereforandsimultaneously moving them into andl out of operative position, anormally operable setting mechanism for said control member, a boltadapted to be projected into contact with said control Vmember forholding same against movement from locked position When said settingmechanism 'is'd'isarranged, and a pivoted locking lever'normally`engaging said bolt and operativ-e to permit said bolt to be projectedinto contact with said control member.

3. A lock for safe doors and the Alike,com prising in combination: aplurality Vof locking'bars or bolts, a control member therefor, anormal-ly operable setting mechanism for said control member, 'and a`device normally arranged in inoperative ,position and projectable upon'bodily movement of said setting mechanism into position l-behind saidcontrol member, vpivoted lloc-king means Inor-- mally preventing sa-iddevice from bein-g projected into position -behind isaid control member,and means for positivelyengaging said device after it is lprojected -toprevent said device from lbei-ng Withdrawn from engagement `With saidcontrol member to fpermit withdrawal of said l"locking tbolts.

4. A ilock v4for saf'e doors "and the llike, lcomprising yincombina-tion, a plurality lof looking bars or bolts, a control membertherefor, constituting the norma-l 'bolt-carrying bar, a vnormallyoperable setting mechanism Vfor said control member, and la y:plungerspring pressed toward a lposition preventing Withdrawal of the lockingbars, a latch adapted to engage said plunger and normally held inoperative position maintaining said plunger retracted, said latch beingWithdrawn from said locking engagement with said plunger upon movementof the setting mechanism to release said plunger and permit it to moveinto position obstruct-ing the unlocking movement of said control bar.

5. A lock for safe doors and the like, comprising in combination, aplurality of locking bars or bolts, a control member therefor, anormally operable setting mechanism for said control member, and a:plunger spring pressed toward a position preventing Withdrawal of thelocking bars, a latch normally held in operative position maintainingsaid plunger retracted, said latch being Withdrawn upon movement of thesetting mechanism to release said plunger and ermit it to be moved intoposition obstructing the unlocking movement of said control bar, and asecond latch for holding said plunger in the position last mentioned.

' 6. A lock for safe doors and the like, comprising in combination aplurality of locking barsy or bolts, a control member therefor,

a normally operable setting mechanism for said control member, and anormally inoperative auxiliary locking mechanism comprising a lockingplunger having a recess in a portion thereof, a latch normally engagedin said recess and holding the plunger retracted, a jointed connectionbetween said latch and said setting mechanism and xedly secured to thelatter whereby the latch is released by disarrangement of said settingmechanism and means for projecting and holding said plunger in lockingengagement With said control member upon release of said latch.

7. A lock for safe doors and the like, comprising in combination aplurality of locking bolts, a carrying bar in Which said bolts aremounted, a main locking mechanism for normally holding said carrying barin position With thel bolts locking the door, a normally inoperativeauxiliary locking device proj ectable into engagement with said carryingbar upondisturbance of said main locklbeing immovable except uponabnormal movement of said main locking mechanism.

8. A lock for safe doors and the like', comprising in combination aplurality of locking bolts, a carrying bar in which said bolts aremounted, a main locking mechanism for normally holding said carrying barin position With the bolts locking the door, a normally inoperativeauxiliary locking device projectable into engagement yWith said carry-'ing bar upon disturbance of said main locking mechanism, and aconnection rigidly secured to the main locking mechanism and normallyholding said auxiliary locking device inoperative, said connection beingjointed and including a replaceable member, the length thereof beingvariable in accordance with the length of the replaceable memberemployed.

9. A lock for safe doors and the like, comprising, in combination, aplurality of locking bars or bolts conjointly movable in the fasteningand releasing of the safe door, a control member therefor, a. normallyoperable setting mechanism for said control member and adapted When setto prevent operation of said control member, a housing mounted behindthe door, a normally retracted member movable in the direction of thebolts and in said housing after the setting mechanism has been tamperedWith, pivoted means operative to permit said movement of said normallyretracted member, and a lock Within said housing released as a result oftampering With the setting mechanism for preventing movement of saidmovable member.

EUGENE C. KINNEAR.

